著者

藤垣 元治 森本 吉春 米山 聡 西岡 明彦 山中 啓司

出版者

一般社団法人日本機械学会

雑誌

年次大会講演論文集 : JSME annual meeting

巻号頁・発行日

vol.2003, no.7, pp.351-352, 2003-08-05

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A profile inspection method which can measure the height distribution of a roadbed from a high-speed vehicle is required for a health monitoring of the roadbed. A light-section method is often used for this purpose. The analysis time is, however, long because this method analyzes a 2-D image to obtain a height distribution along a line. An intensity ratio method was proposed as a profile measurement method. This method can be realized with simple equipments. We are developing a high-speed profile measurement method of a moving object using three linear sensors set in parallel. In this paper, we propose a profile inspection method with three linear sensors by the intensity ratio method.

著者

米山 聡 後藤 仁一郎 隆 雅久

出版者

一般社団法人日本機械学会

雑誌

日本機械学會論文集. A編 (ISSN:03875008)

巻号頁・発行日

vol.64, no.620, pp.1007-1013, 1998-04-26

被引用文献数

3

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The authors propose a new method for simultaneous determination of both fringe order and principal direction of birefringence in practical photoviscoelastic analysis using a white incident light with a set of the three primary colors. When using this method, not only fringe order but principal birefringence direction are successfully and easily determined from a single color image through a plane polariscope. Utilizing this method together with photoviscoelastic constitutive equations, timedependent principal stress and strain difference, also their directions are obtained. In this paper, the fundamental of the tricolor photoviscoelastic technique is described briefly, then a successful application of the method to the analysis of an example of viscoelastic problem is shown.